| GT/BDFB, Brasilia, Brazil | GT/BGCA, Bogoin, Central African Republic |
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| GT/BOSA, Boshof, South Africa | GT/CPUP, Villa Florida, Paraguay |
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| GT/DBIC, Dimbroko, Cote d'Ivoire | GT/LBTB, Lobatse, Botswana, Africa |
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| GT/LPAZ, La Paz, Bolivia | GT/PLCA, Paso Flores, Argentina |
| |
| IU/SBA, Scott Base, Antarctica | GT/VNDA, Wright Valley (Bull Pass), Antarctica |
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| IC/BJT, Baijiatuan, Beijing, China | IC/HIA, Hailar, Neimenggu Province, China |
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| IU/ADK, Aleutian Islands, Alaska, USA | IU/ANMO, Albuquerque, New Mexico, USA |
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| IU/COLA, College Outpost, Alaska, USA | IU/CTAO, Charters Towers, Australia |
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| IU/GNI, Garni, Armenia | IU/GUMO, Guam, Marianas Islands |
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| IU/HKT, Hockley, Texas, USA | IU/INCN, Inchon, Republic of Korea |
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| IU/KBS, Ny-Alesund, Spitzbergen, Norway | IU/KIP, Kipapa, Hawaii, USA |
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| IU/KONO, Kongsberg, Norway | IU/MA2, Magadan, Russia |
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| IU/PAYG Puerto Ayora, Galapagos Islands | IU/PET, Petropavlovsk, Russia | |
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| IU/POHA, Pohakalua, Hawaii | IU/SNZO, South Karori, New Zealand |
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| IU/SPA, South Pole, Antarctica | IU/TATO, Taipei, Taiwan |
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| IU/TIXI, Tiksi, Russia | IU/TUC, Tucson, Arizona |
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| IU/ULN, Ulaanbaatar, Mongolia | IU/YAK, Yakutsk, Russia |
 | Live Internet Seismic Server |
| IU/YSS, Yuzhno Sakhalinsk, Russia |
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